549 lines
20 KiB
C
549 lines
20 KiB
C
/*
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* DIB driver initialization and DC functions.
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*
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* Copyright 2011 Huw Davies
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <assert.h>
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#include "gdi_private.h"
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#include "dibdrv.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dib);
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static void calc_shift_and_len(DWORD mask, int *shift, int *len)
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{
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int s, l;
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if(!mask)
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{
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*shift = *len = 0;
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return;
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}
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s = 0;
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while ((mask & 1) == 0)
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{
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mask >>= 1;
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s++;
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}
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l = 0;
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while ((mask & 1) == 1)
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{
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mask >>= 1;
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l++;
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}
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*shift = s;
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*len = l;
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}
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static void init_bit_fields(dib_info *dib, const DWORD *bit_fields)
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{
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dib->red_mask = bit_fields[0];
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dib->green_mask = bit_fields[1];
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dib->blue_mask = bit_fields[2];
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calc_shift_and_len(dib->red_mask, &dib->red_shift, &dib->red_len);
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calc_shift_and_len(dib->green_mask, &dib->green_shift, &dib->green_len);
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calc_shift_and_len(dib->blue_mask, &dib->blue_shift, &dib->blue_len);
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}
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static BOOL init_dib_info(dib_info *dib, const BITMAPINFOHEADER *bi, const DWORD *bit_fields,
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RGBQUAD *color_table, int color_table_size, void *bits)
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{
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static const DWORD bit_fields_888[3] = {0xff0000, 0x00ff00, 0x0000ff};
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static const DWORD bit_fields_555[3] = {0x7c00, 0x03e0, 0x001f};
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dib->bit_count = bi->biBitCount;
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dib->width = bi->biWidth;
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dib->height = bi->biHeight;
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dib->stride = ((dib->width * dib->bit_count + 31) >> 3) & ~3;
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dib->bits = bits;
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if(dib->height < 0) /* top-down */
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{
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dib->height = -dib->height;
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}
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else /* bottom-up */
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{
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/* bits always points to the top-left corner and the stride is -ve */
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dib->bits = (BYTE*)dib->bits + (dib->height - 1) * dib->stride;
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dib->stride = -dib->stride;
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}
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dib->funcs = &funcs_null;
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switch(dib->bit_count)
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{
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case 32:
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if(bi->biCompression == BI_RGB)
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bit_fields = bit_fields_888;
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init_bit_fields(dib, bit_fields);
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if(dib->red_mask == 0xff0000 && dib->green_mask == 0x00ff00 && dib->blue_mask == 0x0000ff)
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dib->funcs = &funcs_8888;
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else
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dib->funcs = &funcs_32;
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break;
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case 24:
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dib->funcs = &funcs_24;
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break;
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case 16:
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if(bi->biCompression == BI_RGB)
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bit_fields = bit_fields_555;
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init_bit_fields(dib, bit_fields);
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if(dib->red_mask == 0x7c00 && dib->green_mask == 0x03e0 && dib->blue_mask == 0x001f)
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dib->funcs = &funcs_555;
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else
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dib->funcs = &funcs_16;
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break;
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case 8:
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dib->funcs = &funcs_8;
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break;
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case 4:
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dib->funcs = &funcs_4;
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break;
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case 1:
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dib->funcs = &funcs_1;
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break;
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default:
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TRACE("bpp %d not supported, will forward to graphics driver.\n", dib->bit_count);
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return FALSE;
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}
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if(color_table)
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{
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dib->color_table = HeapAlloc(GetProcessHeap(), 0, color_table_size * sizeof(dib->color_table[0]));
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if(!dib->color_table) return FALSE;
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dib->color_table_size = color_table_size;
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memcpy(dib->color_table, color_table, color_table_size * sizeof(color_table[0]));
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}
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else
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{
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dib->color_table = NULL;
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dib->color_table_size = 0;
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}
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return TRUE;
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}
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BOOL init_dib_info_from_packed(dib_info *dib, const BITMAPINFOHEADER *bi, WORD usage, HPALETTE palette)
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{
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DWORD *masks = NULL;
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RGBQUAD *color_table = NULL, pal_table[256];
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BYTE *ptr = (BYTE*)bi + bi->biSize;
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int num_colors = bi->biClrUsed;
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if(bi->biCompression == BI_BITFIELDS)
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{
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masks = (DWORD *)ptr;
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ptr += 3 * sizeof(DWORD);
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}
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if(!num_colors && bi->biBitCount <= 8) num_colors = 1 << bi->biBitCount;
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if(num_colors)
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{
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if(usage == DIB_PAL_COLORS)
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{
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PALETTEENTRY entries[256];
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const WORD *index = (const WORD*) ptr;
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UINT i, count = GetPaletteEntries( palette, 0, num_colors, entries );
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for (i = 0; i < num_colors; i++, index++)
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{
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PALETTEENTRY *entry = &entries[*index % count];
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pal_table[i].rgbRed = entry->peRed;
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pal_table[i].rgbGreen = entry->peGreen;
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pal_table[i].rgbBlue = entry->peBlue;
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pal_table[i].rgbReserved = 0;
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}
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color_table = pal_table;
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ptr += num_colors * sizeof(WORD);
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}
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else
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{
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color_table = (RGBQUAD*)ptr;
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ptr += num_colors * sizeof(*color_table);
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}
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}
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return init_dib_info(dib, bi, masks, color_table, num_colors, ptr);
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}
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static void clear_dib_info(dib_info *dib)
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{
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dib->color_table = NULL;
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dib->bits = NULL;
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}
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/**********************************************************************
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* free_dib_info
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*
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* Free the resources associated with a dib and optionally the bits
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*/
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void free_dib_info(dib_info *dib, BOOL free_bits)
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{
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HeapFree(GetProcessHeap(), 0, dib->color_table);
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dib->color_table = NULL;
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if(free_bits)
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{
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HeapFree(GetProcessHeap(), 0, dib->bits);
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dib->bits = NULL;
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}
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}
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void copy_dib_color_info(dib_info *dst, const dib_info *src)
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{
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dst->bit_count = src->bit_count;
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dst->red_mask = src->red_mask;
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dst->green_mask = src->green_mask;
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dst->blue_mask = src->blue_mask;
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dst->red_len = src->red_len;
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dst->green_len = src->green_len;
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dst->blue_len = src->blue_len;
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dst->red_shift = src->red_shift;
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dst->green_shift = src->green_shift;
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dst->blue_shift = src->blue_shift;
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dst->funcs = src->funcs;
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dst->color_table_size = src->color_table_size;
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dst->color_table = NULL;
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if(dst->color_table_size)
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{
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int size = dst->color_table_size * sizeof(dst->color_table[0]);
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dst->color_table = HeapAlloc(GetProcessHeap(), 0, size);
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memcpy(dst->color_table, src->color_table, size);
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}
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}
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/**************************************************************
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* convert_dib
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*
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* Converts src into the format specified in dst.
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*
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* FIXME: At the moment this always creates a top-down dib,
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* do we want to give the option of bottom-up?
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*/
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BOOL convert_dib(dib_info *dst, const dib_info *src)
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{
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BOOL ret;
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RECT src_rect;
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dst->height = src->height;
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dst->width = src->width;
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dst->stride = ((dst->width * dst->bit_count + 31) >> 3) & ~3;
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dst->bits = HeapAlloc(GetProcessHeap(), 0, dst->height * dst->stride);
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src_rect.left = src_rect.top = 0;
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src_rect.right = src->width;
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src_rect.bottom = src->height;
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ret = dst->funcs->convert_to(dst, src, &src_rect);
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if(!ret) free_dib_info(dst, TRUE);
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return ret;
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}
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static void update_fg_colors( dibdrv_physdev *pdev )
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{
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pdev->pen_color = get_fg_color( pdev, pdev->pen_colorref );
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pdev->brush_color = get_fg_color( pdev, pdev->brush_colorref );
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}
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static void update_masks( dibdrv_physdev *pdev, INT rop )
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{
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calc_and_xor_masks( rop, pdev->pen_color, &pdev->pen_and, &pdev->pen_xor );
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update_brush_rop( pdev, rop );
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if( GetBkMode( pdev->dev.hdc ) == OPAQUE )
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calc_and_xor_masks( rop, pdev->bkgnd_color, &pdev->bkgnd_and, &pdev->bkgnd_xor );
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}
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/***********************************************************************
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* dibdrv_DeleteDC
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*/
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static BOOL CDECL dibdrv_DeleteDC( PHYSDEV dev )
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{
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dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
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TRACE("(%p)\n", dev);
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DeleteObject(pdev->clip);
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free_pattern_brush(pdev);
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free_dib_info(&pdev->dib, FALSE);
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return 0;
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}
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/***********************************************************************
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* dibdrv_SelectBitmap
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*/
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static HBITMAP CDECL dibdrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
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{
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PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSelectBitmap );
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dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
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BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
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TRACE("(%p, %p)\n", dev, bitmap);
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if (!bmp) return 0;
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assert(bmp->dib);
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pdev->clip = CreateRectRgn(0, 0, 0, 0);
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pdev->defer = 0;
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clear_dib_info(&pdev->dib);
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clear_dib_info(&pdev->brush_dib);
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pdev->brush_and_bits = pdev->brush_xor_bits = NULL;
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if(!init_dib_info(&pdev->dib, &bmp->dib->dsBmih, bmp->dib->dsBitfields,
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bmp->color_table, bmp->nb_colors, bmp->dib->dsBm.bmBits))
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pdev->defer |= DEFER_FORMAT;
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GDI_ReleaseObj( bitmap );
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return next->funcs->pSelectBitmap( next, bitmap );
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}
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/***********************************************************************
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* dibdrv_SetBkColor
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*/
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static COLORREF CDECL dibdrv_SetBkColor( PHYSDEV dev, COLORREF color )
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{
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PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetBkColor );
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dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
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pdev->bkgnd_color = pdev->dib.funcs->colorref_to_pixel( &pdev->dib, color );
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if( GetBkMode(dev->hdc) == OPAQUE )
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calc_and_xor_masks( GetROP2(dev->hdc), pdev->bkgnd_color, &pdev->bkgnd_and, &pdev->bkgnd_xor );
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else
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{
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pdev->bkgnd_and = ~0u;
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pdev->bkgnd_xor = 0;
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}
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update_fg_colors( pdev ); /* Only needed in the 1 bpp case */
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return next->funcs->pSetBkColor( next, color );
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}
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/***********************************************************************
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* dibdrv_SetBkMode
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*/
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static INT CDECL dibdrv_SetBkMode( PHYSDEV dev, INT mode )
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{
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PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetBkMode );
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dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
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if( mode == OPAQUE )
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calc_and_xor_masks( GetROP2(dev->hdc), pdev->bkgnd_color, &pdev->bkgnd_and, &pdev->bkgnd_xor );
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else
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{
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pdev->bkgnd_and = ~0u;
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pdev->bkgnd_xor = 0;
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}
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return next->funcs->pSetBkMode( next, mode );
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}
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/***********************************************************************
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* dibdrv_SetDeviceClipping
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*/
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static void CDECL dibdrv_SetDeviceClipping( PHYSDEV dev, HRGN vis_rgn, HRGN clip_rgn )
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{
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PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetDeviceClipping );
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dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
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TRACE("(%p, %p, %p)\n", dev, vis_rgn, clip_rgn);
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CombineRgn( pdev->clip, vis_rgn, clip_rgn, clip_rgn ? RGN_AND : RGN_COPY );
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return next->funcs->pSetDeviceClipping( next, vis_rgn, clip_rgn);
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}
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/***********************************************************************
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* dibdrv_SetDIBColorTable
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*/
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static UINT CDECL dibdrv_SetDIBColorTable( PHYSDEV dev, UINT pos, UINT count, const RGBQUAD *colors )
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{
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PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetDIBColorTable );
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dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
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TRACE("(%p, %d, %d, %p)\n", dev, pos, count, colors);
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if( pdev->dib.color_table && pos < pdev->dib.color_table_size )
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{
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if( pos + count > pdev->dib.color_table_size ) count = pdev->dib.color_table_size - pos;
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memcpy( pdev->dib.color_table + pos, colors, count * sizeof(RGBQUAD) );
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pdev->bkgnd_color = pdev->dib.funcs->colorref_to_pixel( &pdev->dib, GetBkColor( dev->hdc ) );
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update_fg_colors( pdev );
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update_masks( pdev, GetROP2( dev->hdc ) );
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}
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return next->funcs->pSetDIBColorTable( next, pos, count, colors );
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}
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/***********************************************************************
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* dibdrv_SetROP2
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*/
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static INT CDECL dibdrv_SetROP2( PHYSDEV dev, INT rop )
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{
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PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetROP2 );
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dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
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update_masks( pdev, rop );
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return next->funcs->pSetROP2( next, rop );
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}
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const DC_FUNCTIONS dib_driver =
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{
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NULL, /* pAbortDoc */
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NULL, /* pAbortPath */
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NULL, /* pAlphaBlend */
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NULL, /* pAngleArc */
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NULL, /* pArc */
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NULL, /* pArcTo */
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NULL, /* pBeginPath */
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NULL, /* pChoosePixelFormat */
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NULL, /* pChord */
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NULL, /* pCloseFigure */
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NULL, /* pCreateBitmap */
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NULL, /* pCreateDC */
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NULL, /* pCreateDIBSection */
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NULL, /* pDeleteBitmap */
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dibdrv_DeleteDC, /* pDeleteDC */
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NULL, /* pDeleteObject */
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NULL, /* pDescribePixelFormat */
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NULL, /* pDeviceCapabilities */
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NULL, /* pEllipse */
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NULL, /* pEndDoc */
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NULL, /* pEndPage */
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NULL, /* pEndPath */
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NULL, /* pEnumDeviceFonts */
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NULL, /* pEnumICMProfiles */
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NULL, /* pExcludeClipRect */
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NULL, /* pExtDeviceMode */
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NULL, /* pExtEscape */
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NULL, /* pExtFloodFill */
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NULL, /* pExtSelectClipRgn */
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NULL, /* pExtTextOut */
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NULL, /* pFillPath */
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NULL, /* pFillRgn */
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NULL, /* pFlattenPath */
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NULL, /* pFrameRgn */
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NULL, /* pGdiComment */
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NULL, /* pGetBitmapBits */
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NULL, /* pGetCharWidth */
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NULL, /* pGetDIBits */
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NULL, /* pGetDeviceCaps */
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NULL, /* pGetDeviceGammaRamp */
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NULL, /* pGetICMProfile */
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NULL, /* pGetNearestColor */
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NULL, /* pGetPixel */
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NULL, /* pGetPixelFormat */
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NULL, /* pGetSystemPaletteEntries */
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NULL, /* pGetTextExtentExPoint */
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NULL, /* pGetTextMetrics */
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NULL, /* pIntersectClipRect */
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NULL, /* pInvertRgn */
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dibdrv_LineTo, /* pLineTo */
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NULL, /* pModifyWorldTransform */
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NULL, /* pMoveTo */
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NULL, /* pOffsetClipRgn */
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NULL, /* pOffsetViewportOrg */
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NULL, /* pOffsetWindowOrg */
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dibdrv_PaintRgn, /* pPaintRgn */
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dibdrv_PatBlt, /* pPatBlt */
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NULL, /* pPie */
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NULL, /* pPolyBezier */
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NULL, /* pPolyBezierTo */
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NULL, /* pPolyDraw */
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NULL, /* pPolyPolygon */
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NULL, /* pPolyPolyline */
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NULL, /* pPolygon */
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NULL, /* pPolyline */
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NULL, /* pPolylineTo */
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NULL, /* pRealizeDefaultPalette */
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NULL, /* pRealizePalette */
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dibdrv_Rectangle, /* pRectangle */
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NULL, /* pResetDC */
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NULL, /* pRestoreDC */
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NULL, /* pRoundRect */
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NULL, /* pSaveDC */
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NULL, /* pScaleViewportExt */
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NULL, /* pScaleWindowExt */
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dibdrv_SelectBitmap, /* pSelectBitmap */
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dibdrv_SelectBrush, /* pSelectBrush */
|
|
NULL, /* pSelectClipPath */
|
|
NULL, /* pSelectFont */
|
|
NULL, /* pSelectPalette */
|
|
dibdrv_SelectPen, /* pSelectPen */
|
|
NULL, /* pSetArcDirection */
|
|
NULL, /* pSetBitmapBits */
|
|
dibdrv_SetBkColor, /* pSetBkColor */
|
|
dibdrv_SetBkMode, /* pSetBkMode */
|
|
dibdrv_SetDCBrushColor, /* pSetDCBrushColor */
|
|
dibdrv_SetDCPenColor, /* pSetDCPenColor */
|
|
dibdrv_SetDIBColorTable, /* pSetDIBColorTable */
|
|
NULL, /* pSetDIBits */
|
|
NULL, /* pSetDIBitsToDevice */
|
|
dibdrv_SetDeviceClipping, /* pSetDeviceClipping */
|
|
NULL, /* pSetDeviceGammaRamp */
|
|
NULL, /* pSetLayout */
|
|
NULL, /* pSetMapMode */
|
|
NULL, /* pSetMapperFlags */
|
|
NULL, /* pSetPixel */
|
|
NULL, /* pSetPixelFormat */
|
|
NULL, /* pSetPolyFillMode */
|
|
dibdrv_SetROP2, /* pSetROP2 */
|
|
NULL, /* pSetRelAbs */
|
|
NULL, /* pSetStretchBltMode */
|
|
NULL, /* pSetTextAlign */
|
|
NULL, /* pSetTextCharacterExtra */
|
|
NULL, /* pSetTextColor */
|
|
NULL, /* pSetTextJustification */
|
|
NULL, /* pSetViewportExt */
|
|
NULL, /* pSetViewportOrg */
|
|
NULL, /* pSetWindowExt */
|
|
NULL, /* pSetWindowOrg */
|
|
NULL, /* pSetWorldTransform */
|
|
NULL, /* pStartDoc */
|
|
NULL, /* pStartPage */
|
|
NULL, /* pStretchBlt */
|
|
NULL, /* pStretchDIBits */
|
|
NULL, /* pStrokeAndFillPath */
|
|
NULL, /* pStrokePath */
|
|
NULL, /* pSwapBuffers */
|
|
NULL, /* pUnrealizePalette */
|
|
NULL, /* pWidenPath */
|
|
NULL, /* pwglCopyContext */
|
|
NULL, /* pwglCreateContext */
|
|
NULL, /* pwglCreateContextAttribsARB */
|
|
NULL, /* pwglDeleteContext */
|
|
NULL, /* pwglGetProcAddress */
|
|
NULL, /* pwglGetPbufferDCARB */
|
|
NULL, /* pwglMakeCurrent */
|
|
NULL, /* pwglMakeContextCurrentARB */
|
|
NULL, /* pwglSetPixelFormatWINE */
|
|
NULL, /* pwglShareLists */
|
|
NULL, /* pwglUseFontBitmapsA */
|
|
NULL /* pwglUseFontBitmapsW */
|
|
};
|